Encoding tests

tests/src/test/java/IOTests.java

@@ -0,0 +1,34 @@
+import io.anuke.mindustry.io.TypeIO;
+import org.junit.jupiter.api.Test;
+
+import java.nio.ByteBuffer;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class IOTests{
+
+    @Test
+    void writeEnglish(){
+        ByteBuffer buffer = ByteBuffer.allocate(500);
+        TypeIO.writeString(buffer, "asd asd asd asd asdagagasasjakbgeah;jwrej 23424234");
+        buffer.position(0);
+        assertEquals(TypeIO.readString(buffer), "asd asd asd asd asdagagasasjakbgeah;jwrej 23424234");
+    }
+
+    @Test
+    void writeChinese(){
+        ByteBuffer buffer = ByteBuffer.allocate(500);
+        TypeIO.writeString(buffer, "这个服务器可以用自己的语言说话");
+        buffer.position(0);
+        assertEquals(TypeIO.readString(buffer), "这个服务器可以用自己的语言说话");
+    }
+
+    @Test
+    void writeNull(){
+        ByteBuffer buffer = ByteBuffer.allocate(500);
+        TypeIO.writeString(buffer, null);
+        buffer.position(0);
+        assertEquals(TypeIO.readString(buffer), null);
+    }
+
+}